US Bridges

S-8-599 over Muddy Creek

Fair

Berkeley County, South Carolina · 2.5 MI NE Huger · Structure no. 000000000005472

Built
1969
56 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
30 ft
2 main spans
Daily traffic
100
2023 count
Owner
State
State Highway Agency

About this bridge

S-8-599 over Muddy Creek is a concrete slab carrying S-8-599 over Muddy Creek in Berkeley County, South Carolina. It was built in 1969, so it is 56 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 5% of them trucks, projected to reach 128 by 2043. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesS-8-599
CrossesMuddy Creek
Location2.5 MI NE Huger
RouteState Highway 599
Coordinates33.11056, -79.76472
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating21.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 10
Structure length30 ft (9.1 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic128 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-8-599 over Muddy Creek built?

It was built in 1969, making it 56 years old in 2025.

What condition is S-8-599 over Muddy Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does S-8-599 over Muddy Creek carry?

About 100 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is S-8-599 over Muddy Creek?

The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-8-599 over Muddy Creek?

It is owned by the State Highway Agency.